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Date: Tue, 8 Sep 2015 16:47:55 -0400
From: Vivien Didelot <vivien.didelot@...oirfairelinux.com>
To: netdev@...r.kernel.org
Cc: Jiri Pirko <jiri@...nulli.us>, Scott Feldman <sfeldma@...il.com>,
Florian Fainelli <f.fainelli@...il.com>,
Andrew Lunn <andrew@...n.ch>, kernel@...oirfairelinux.com,
Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Subject: [RFC PATCH net-next 3/3] net: switchdev: extract switchdev_obj_fdb
Move the switchdev_obj_fdb structure out of the switchdev_obj union.
This lightens the switchdev_obj structure and allows drivers to access
the object transaction and callback directly from a switchdev_obj_fdb.
This is more consistent and convenient for add and dump operations.
The patch updates bridge, the Rocker driver and DSA accordingly.
Signed-off-by: Vivien Didelot <vivien.didelot@...oirfairelinux.com>
---
drivers/net/ethernet/rocker/rocker.c | 25 ++++++++++++++---------
include/net/switchdev.h | 15 +++++++-------
net/bridge/br_fdb.c | 12 +++++------
net/dsa/slave.c | 32 ++++++++++++++++-------------
net/switchdev/switchdev.c | 39 ++++++++++++++++--------------------
5 files changed, 63 insertions(+), 60 deletions(-)
diff --git a/drivers/net/ethernet/rocker/rocker.c b/drivers/net/ethernet/rocker/rocker.c
index 41aabbc..c3f25a9 100644
--- a/drivers/net/ethernet/rocker/rocker.c
+++ b/drivers/net/ethernet/rocker/rocker.c
@@ -4410,7 +4410,6 @@ static int rocker_port_vlans_add(struct rocker_port *rocker_port,
}
static int rocker_port_fdb_add(struct rocker_port *rocker_port,
- enum switchdev_trans trans,
const struct switchdev_obj_fdb *fdb)
{
__be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, fdb->vid, NULL);
@@ -4419,7 +4418,8 @@ static int rocker_port_fdb_add(struct rocker_port *rocker_port,
if (!rocker_port_is_bridged(rocker_port))
return -EINVAL;
- return rocker_port_fdb(rocker_port, trans, fdb->addr, vlan_id, flags);
+ return rocker_port_fdb(rocker_port, fdb->obj.trans, fdb->addr, vlan_id,
+ flags);
}
static int rocker_port_obj_add(struct net_device *dev,
@@ -4428,6 +4428,7 @@ static int rocker_port_obj_add(struct net_device *dev,
struct rocker_port *rocker_port = netdev_priv(dev);
const struct switchdev_obj_vlan *vlan;
const struct switchdev_obj_ipv4_fib *fib4;
+ const struct switchdev_obj_fdb *fdb;
int err = 0;
switch (obj->trans) {
@@ -4453,7 +4454,8 @@ static int rocker_port_obj_add(struct net_device *dev,
fib4->fi, fib4->tb_id, 0);
break;
case SWITCHDEV_OBJ_PORT_FDB:
- err = rocker_port_fdb_add(rocker_port, obj->trans, &obj->u.fdb);
+ fdb = (struct switchdev_obj_fdb *) obj;
+ err = rocker_port_fdb_add(rocker_port, fdb);
break;
default:
err = -EOPNOTSUPP;
@@ -4493,7 +4495,6 @@ static int rocker_port_vlans_del(struct rocker_port *rocker_port,
}
static int rocker_port_fdb_del(struct rocker_port *rocker_port,
- enum switchdev_trans trans,
const struct switchdev_obj_fdb *fdb)
{
__be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, fdb->vid, NULL);
@@ -4502,7 +4503,8 @@ static int rocker_port_fdb_del(struct rocker_port *rocker_port,
if (!rocker_port_is_bridged(rocker_port))
return -EINVAL;
- return rocker_port_fdb(rocker_port, trans, fdb->addr, vlan_id, flags);
+ return rocker_port_fdb(rocker_port, fdb->obj.trans, fdb->addr, vlan_id,
+ flags);
}
static int rocker_port_obj_del(struct net_device *dev,
@@ -4511,6 +4513,7 @@ static int rocker_port_obj_del(struct net_device *dev,
struct rocker_port *rocker_port = netdev_priv(dev);
const struct switchdev_obj_vlan *vlan;
const struct switchdev_obj_ipv4_fib *fib4;
+ const struct switchdev_obj_fdb *fdb;
int err = 0;
switch (obj->id) {
@@ -4526,7 +4529,8 @@ static int rocker_port_obj_del(struct net_device *dev,
ROCKER_OP_FLAG_REMOVE);
break;
case SWITCHDEV_OBJ_PORT_FDB:
- err = rocker_port_fdb_del(rocker_port, obj->trans, &obj->u.fdb);
+ fdb = (struct switchdev_obj_fdb *) obj;
+ err = rocker_port_fdb_del(rocker_port, fdb);
break;
default:
err = -EOPNOTSUPP;
@@ -4537,10 +4541,9 @@ static int rocker_port_obj_del(struct net_device *dev,
}
static int rocker_port_fdb_dump(const struct rocker_port *rocker_port,
- struct switchdev_obj *obj)
+ struct switchdev_obj_fdb *fdb)
{
struct rocker *rocker = rocker_port->rocker;
- struct switchdev_obj_fdb *fdb = &obj->u.fdb;
struct rocker_fdb_tbl_entry *found;
struct hlist_node *tmp;
unsigned long lock_flags;
@@ -4555,7 +4558,7 @@ static int rocker_port_fdb_dump(const struct rocker_port *rocker_port,
fdb->ndm_state = NUD_REACHABLE;
fdb->vid = rocker_port_vlan_to_vid(rocker_port,
found->key.vlan_id);
- err = obj->cb(rocker_port->dev, obj);
+ err = fdb->obj.cb(rocker_port->dev, &fdb->obj);
if (err)
break;
}
@@ -4590,11 +4593,13 @@ static int rocker_port_obj_dump(struct net_device *dev,
{
const struct rocker_port *rocker_port = netdev_priv(dev);
struct switchdev_obj_vlan *vlan;
+ struct switchdev_obj_fdb *fdb;
int err = 0;
switch (obj->id) {
case SWITCHDEV_OBJ_PORT_FDB:
- err = rocker_port_fdb_dump(rocker_port, obj);
+ fdb = (struct switchdev_obj_fdb *) obj;
+ err = rocker_port_fdb_dump(rocker_port, fdb);
break;
case SWITCHDEV_OBJ_PORT_VLAN:
vlan = (struct switchdev_obj_vlan *) obj;
diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index 0b76aa8..302f027 100644
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -54,13 +54,6 @@ struct switchdev_obj {
enum switchdev_obj_id id;
enum switchdev_trans trans;
int (*cb)(struct net_device *dev, struct switchdev_obj *obj);
- union {
- struct switchdev_obj_fdb { /* PORT_FDB */
- const unsigned char *addr;
- u16 vid;
- u16 ndm_state;
- } fdb;
- } u;
};
/* SWITCHDEV_OBJ_PORT_VLAN */
@@ -83,6 +76,14 @@ struct switchdev_obj_ipv4_fib {
u32 tb_id;
};
+/* SWITCHDEV_OBJ_PORT_FDB */
+struct switchdev_obj_fdb {
+ struct switchdev_obj obj; /* must be first */
+ const unsigned char *addr;
+ u16 vid;
+ u16 ndm_state;
+};
+
/**
* struct switchdev_ops - switchdev operations
*
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index 9e9875d..d20d9b9 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -133,15 +133,13 @@ static void fdb_del_hw_addr(struct net_bridge *br, const unsigned char *addr)
static void fdb_del_external_learn(struct net_bridge_fdb_entry *f)
{
- struct switchdev_obj obj = {
- .id = SWITCHDEV_OBJ_PORT_FDB,
- .u.fdb = {
- .addr = f->addr.addr,
- .vid = f->vlan_id,
- },
+ struct switchdev_obj_fdb fdb = {
+ .obj.id = SWITCHDEV_OBJ_PORT_FDB,
+ .addr = f->addr.addr,
+ .vid = f->vlan_id,
};
- switchdev_port_obj_del(f->dst->dev, &obj);
+ switchdev_port_obj_del(f->dst->dev, &fdb.obj);
}
static void fdb_delete(struct net_bridge *br, struct net_bridge_fdb_entry *f)
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 654afc8..d1de9df 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -344,25 +344,23 @@ static int dsa_slave_port_vlan_dump(struct net_device *dev,
}
static int dsa_slave_port_fdb_add(struct net_device *dev,
- struct switchdev_obj *obj)
+ struct switchdev_obj_fdb *fdb)
{
- struct switchdev_obj_fdb *fdb = &obj->u.fdb;
struct dsa_slave_priv *p = netdev_priv(dev);
struct dsa_switch *ds = p->parent;
int ret = -EOPNOTSUPP;
- if (obj->trans == SWITCHDEV_TRANS_PREPARE)
+ if (fdb->obj.trans == SWITCHDEV_TRANS_PREPARE)
ret = ds->drv->port_fdb_add ? 0 : -EOPNOTSUPP;
- else if (obj->trans == SWITCHDEV_TRANS_COMMIT)
+ else if (fdb->obj.trans == SWITCHDEV_TRANS_COMMIT)
ret = ds->drv->port_fdb_add(ds, p->port, fdb->addr, fdb->vid);
return ret;
}
static int dsa_slave_port_fdb_del(struct net_device *dev,
- struct switchdev_obj *obj)
+ struct switchdev_obj_fdb *fdb)
{
- struct switchdev_obj_fdb *fdb = &obj->u.fdb;
struct dsa_slave_priv *p = netdev_priv(dev);
struct dsa_switch *ds = p->parent;
int ret = -EOPNOTSUPP;
@@ -374,7 +372,7 @@ static int dsa_slave_port_fdb_del(struct net_device *dev,
}
static int dsa_slave_port_fdb_dump(struct net_device *dev,
- struct switchdev_obj *obj)
+ struct switchdev_obj_fdb *fdb)
{
struct dsa_slave_priv *p = netdev_priv(dev);
struct dsa_switch *ds = p->parent;
@@ -393,11 +391,11 @@ static int dsa_slave_port_fdb_dump(struct net_device *dev,
if (ret < 0)
break;
- obj->u.fdb.addr = addr;
- obj->u.fdb.vid = vid;
- obj->u.fdb.ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE;
+ fdb->addr = addr;
+ fdb->vid = vid;
+ fdb->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE;
- ret = obj->cb(dev, obj);
+ ret = fdb->obj.cb(dev, &fdb->obj);
if (ret < 0)
break;
}
@@ -474,6 +472,7 @@ static int dsa_slave_port_obj_add(struct net_device *dev,
struct switchdev_obj *obj)
{
struct switchdev_obj_vlan *vlan;
+ struct switchdev_obj_fdb *fdb;
int err;
/* For the prepare phase, ensure the full set of changes is feasable in
@@ -483,7 +482,8 @@ static int dsa_slave_port_obj_add(struct net_device *dev,
switch (obj->id) {
case SWITCHDEV_OBJ_PORT_FDB:
- err = dsa_slave_port_fdb_add(dev, obj);
+ fdb = (struct switchdev_obj_fdb *) obj;
+ err = dsa_slave_port_fdb_add(dev, fdb);
break;
case SWITCHDEV_OBJ_PORT_VLAN:
vlan = (struct switchdev_obj_vlan *) obj;
@@ -501,11 +501,13 @@ static int dsa_slave_port_obj_del(struct net_device *dev,
struct switchdev_obj *obj)
{
struct switchdev_obj_vlan *vlan;
+ struct switchdev_obj_fdb *fdb;
int err;
switch (obj->id) {
case SWITCHDEV_OBJ_PORT_FDB:
- err = dsa_slave_port_fdb_del(dev, obj);
+ fdb = (struct switchdev_obj_fdb *) obj;
+ err = dsa_slave_port_fdb_del(dev, fdb);
break;
case SWITCHDEV_OBJ_PORT_VLAN:
vlan = (struct switchdev_obj_vlan *) obj;
@@ -523,11 +525,13 @@ static int dsa_slave_port_obj_dump(struct net_device *dev,
struct switchdev_obj *obj)
{
struct switchdev_obj_vlan *vlan;
+ struct switchdev_obj_fdb *fdb;
int err;
switch (obj->id) {
case SWITCHDEV_OBJ_PORT_FDB:
- err = dsa_slave_port_fdb_dump(dev, obj);
+ fdb = (struct switchdev_obj_fdb *) obj;
+ err = dsa_slave_port_fdb_dump(dev, fdb);
break;
case SWITCHDEV_OBJ_PORT_VLAN:
vlan = (struct switchdev_obj_vlan *) obj;
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index 10fde6f..5349752 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -739,15 +739,13 @@ int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
struct net_device *dev, const unsigned char *addr,
u16 vid, u16 nlm_flags)
{
- struct switchdev_obj obj = {
- .id = SWITCHDEV_OBJ_PORT_FDB,
- .u.fdb = {
- .addr = addr,
- .vid = vid,
- },
+ struct switchdev_obj_fdb fdb = {
+ .obj.id = SWITCHDEV_OBJ_PORT_FDB,
+ .addr = addr,
+ .vid = vid,
};
- return switchdev_port_obj_add(dev, &obj);
+ return switchdev_port_obj_add(dev, &fdb.obj);
}
EXPORT_SYMBOL_GPL(switchdev_port_fdb_add);
@@ -766,20 +764,18 @@ int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
struct net_device *dev, const unsigned char *addr,
u16 vid)
{
- struct switchdev_obj obj = {
- .id = SWITCHDEV_OBJ_PORT_FDB,
- .u.fdb = {
- .addr = addr,
- .vid = vid,
- },
+ struct switchdev_obj_fdb fdb = {
+ .obj.id = SWITCHDEV_OBJ_PORT_FDB,
+ .addr = addr,
+ .vid = vid,
};
- return switchdev_port_obj_del(dev, &obj);
+ return switchdev_port_obj_del(dev, &fdb.obj);
}
EXPORT_SYMBOL_GPL(switchdev_port_fdb_del);
struct switchdev_fdb_dump {
- struct switchdev_obj obj;
+ struct switchdev_obj_fdb fdb; /* must be first */
struct sk_buff *skb;
struct netlink_callback *cb;
int idx;
@@ -788,8 +784,7 @@ struct switchdev_fdb_dump {
static int switchdev_port_fdb_dump_cb(struct net_device *dev,
struct switchdev_obj *obj)
{
- struct switchdev_fdb_dump *dump =
- container_of(obj, struct switchdev_fdb_dump, obj);
+ struct switchdev_fdb_dump *dump = (struct switchdev_fdb_dump *) obj;
u32 portid = NETLINK_CB(dump->cb->skb).portid;
u32 seq = dump->cb->nlh->nlmsg_seq;
struct nlmsghdr *nlh;
@@ -810,12 +805,12 @@ static int switchdev_port_fdb_dump_cb(struct net_device *dev,
ndm->ndm_flags = NTF_SELF;
ndm->ndm_type = 0;
ndm->ndm_ifindex = dev->ifindex;
- ndm->ndm_state = obj->u.fdb.ndm_state;
+ ndm->ndm_state = dump->fdb.ndm_state;
- if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, obj->u.fdb.addr))
+ if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, dump->fdb.addr))
goto nla_put_failure;
- if (obj->u.fdb.vid && nla_put_u16(dump->skb, NDA_VLAN, obj->u.fdb.vid))
+ if (dump->fdb.vid && nla_put_u16(dump->skb, NDA_VLAN, dump->fdb.vid))
goto nla_put_failure;
nlmsg_end(dump->skb, nlh);
@@ -845,7 +840,7 @@ int switchdev_port_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
struct net_device *filter_dev, int idx)
{
struct switchdev_fdb_dump dump = {
- .obj = {
+ .fdb.obj = {
.id = SWITCHDEV_OBJ_PORT_FDB,
.cb = switchdev_port_fdb_dump_cb,
},
@@ -855,7 +850,7 @@ int switchdev_port_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
};
int err;
- err = switchdev_port_obj_dump(dev, &dump.obj);
+ err = switchdev_port_obj_dump(dev, &dump.fdb.obj);
if (err)
return err;
--
2.5.1
--
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